Nvidia’s stock market dominance fuels big swings in the S&P 500
By Saqib Iqbal Ahmed NEW YORK (Reuters) – Nvidia’s huge stock rally is still exerting an outsized influence over the S&P 500 index , reinforcing concerns that broader markets could be hurt if the chipmaking giant’s fortunes turn. This year’s 140% surge in shares of Nvidia, whose chips are seen as the gold standard in…